Yttrium hydroxide

Yttrium(III) hydroxide is an inorganic compound and an alkali with the chemical formula Y(OH)₃.

Production

Yttrium(III) hydroxide can be produced by reacting yttrium(III) nitrate and sodium hydroxide in aqueous solution:

Y(NO₃)₃ + 3 NaOH → Y(OH)₃↓ + 3 NaNO₃

This gives yttrium(III) hydroxide as a white gelatinous precipitate, which can be dried to a white powder.

Chemical properties

Yttrium(III) hydroxide is an alkali, so it can react with acid:

Y(OH)₃ + 3 HNO₃ → Y(NO₃)₃ + 3 H₂O

2 Y(OH)₃ + 3 H₂SO₄ → Y₂(SO₄)₃ + 3 H₂O

The compound absorbs atmospheric carbon dioxide.

When heated, yttrium(III) hydroxide will decompose:

2 Y(OH)₃ → Y₂O₃ + 3 H₂O↑

References

1. Yttrium compounds
2. Yttrium
3. Yttrium(III) phosphate
4. Yttrium iodide
5. Rare-earth element
6. Yttrium(III) fluoride
7. Scandium(III) hydroxide
8. List of inorganic compounds
9. Scandium
10. Uranyl carbonate
11. Actinium(III) hydroxide
12. Gadolinium(III) oxalate
13. Yttrocene
14. Lanthanum
15. Yttrium(III) sulfate
16. Aluminium chloride
17. Erbium
18. Lutetium
19. Monazite
20. Dysprosium